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lock to protected
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@ -34,7 +34,7 @@ public abstract class AbstractCache<K, V> implements Cache<K, V> {
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// 乐观锁,此处使用乐观锁解决读多写少的场景
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// get时乐观读,再检查是否修改,修改则转入悲观读重新读一遍,可以有效解决在写时阻塞大量读操作的情况。
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// see: https://www.cnblogs.com/jiagoushijuzi/p/13721319.html
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private final StampedLock lock = new StampedLock();
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protected final StampedLock lock = new StampedLock();
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/**
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* 写的时候每个key一把锁,降低锁的粒度
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